Walkthrough part 23

Take the Fire Rate upgrade at the leftside alleyway with a sealed door, before going through the open doorway into the building ahead. Take the rubles case and the rubles on the ground at the rightside alleyway with a closed door, also before going into that open doorway.

Inside the building, a powersuit soldier will appear in the room at the end of the entrance corridor. Kill him. Use the electricity from the powersuit soldier's corpse to activate the sparking switch that opens the shutter leading outside to a cliff area.

With his super suit, Hayden can now carry the chaingun used by the powersuit soldier. The chaingun reduces mobility, but it comes with infinite chaingun ammo and ten linear explosive shells (press the Reload Button to view the remaining number of shells).

Just past the shutter, there is another chaingun lying on a crate. Kill the several soldiers who appear at various spots in the distance. When enough bad guys are dead, some more soldiers will blow open a section of the fence along the side path. Follow this side path, which winds around the cliffs with the buildings.

The next section is a wide exterior area with opened containers and lots of zombies.

Take the Fire Power upgrade on the small wooden boat lying on some rocks, on the waters below the opened container that has a light and a dead soldier. Use the glaive to grab it. Take the rubles case and the rubles on the floor of the bridge, past the gun emplacement.

There is a manhole on the bridge, past the gun emplacement. This is the last manhole, so take care in choosing weapons and any upgrades. Use a Power Throw to break the reinforced lock on the gate that leads onward.